GB1055659A - Process for the manufacture of 1,2-dicyanocyclobutane - Google Patents

Process for the manufacture of 1,2-dicyanocyclobutane

Info

Publication number
GB1055659A
GB1055659A GB23732/64A GB2373264A GB1055659A GB 1055659 A GB1055659 A GB 1055659A GB 23732/64 A GB23732/64 A GB 23732/64A GB 2373264 A GB2373264 A GB 2373264A GB 1055659 A GB1055659 A GB 1055659A
Authority
GB
United Kingdom
Prior art keywords
acrylonitrile
dicyanocyclobutane
manufacture
inert gas
under
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB23732/64A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knapsack AG
Original Assignee
Knapsack AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Knapsack AG filed Critical Knapsack AG
Publication of GB1055659A publication Critical patent/GB1055659A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C255/00—Carboxylic acid nitriles
    • C07C255/45—Carboxylic acid nitriles having cyano groups bound to carbon atoms of rings other than six-membered aromatic rings

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

In a process for the manufacture of 1,2-dicyanocyclobutane by catalytic dimerization of acrylonitrile at elevated temperatures and under the atmosphere of an inert gas followed by distillative removal of unreacted acrylonitrile the acrylonitrile is dimerized in the liquid phase in the presence of nitrogen monoxide and water as catalyst at a pH value of less than 7, a temperature of about 180 DEG to 260 DEG C. and under an inert gas pressure of about 10 to 100 atmospheres the dimerization being carried out for a period of time of up to 6 hours. Apparatus for carrying out the process is described with reference to Figs. 1 and 2 (not shown). Examples are furnished.
GB23732/64A 1963-06-06 1964-06-08 Process for the manufacture of 1,2-dicyanocyclobutane Expired GB1055659A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK49914A DE1231694B (en) 1963-06-06 1963-06-06 Process for the production of 1, 2-dicyancyclobutane

Publications (1)

Publication Number Publication Date
GB1055659A true GB1055659A (en) 1967-01-18

Family

ID=7225412

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23732/64A Expired GB1055659A (en) 1963-06-06 1964-06-08 Process for the manufacture of 1,2-dicyanocyclobutane

Country Status (8)

Country Link
US (1) US3316288A (en)
AT (1) AT248412B (en)
BE (1) BE648868A (en)
CH (1) CH437250A (en)
DE (1) DE1231694B (en)
FR (1) FR1397085A (en)
GB (1) GB1055659A (en)
NL (1) NL6406408A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081008B (en) * 1959-02-06 1960-05-05 Knapsack Ag Process for the production of 1, 2-dicyancyclobutane
US3096360A (en) * 1959-02-06 1963-07-02 Knapsack Ag Manufacture of 1, 2-dicyanocyclobutane
GB897275A (en) * 1959-12-07 1962-05-23 Du Pont Production of acrylonitrile cyclic dimer
US3061883A (en) * 1959-12-07 1962-11-06 Du Pont Polymers of carboxylic modified copolymers of butadiene-1, 3 hydrocarbons and acrylic nitriles

Also Published As

Publication number Publication date
NL6406408A (en) 1964-12-07
BE648868A (en) 1964-10-01
US3316288A (en) 1967-04-25
FR1397085A (en) 1965-04-23
CH437250A (en) 1967-06-15
AT248412B (en) 1966-07-25
DE1231694B (en) 1967-01-05

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